I just started this a moment ago, and it escaped from me somehow, so here I go, forgive me if part of thisis already posted.
It seems many believe the day of worship assembly is automatically the Sabbath of the Lord. Not so! We are permitted to worship seven days a week, and all who love God do this indeed, though not every day in assembly.
The Sabbath of the Lord cannot be changed unless God says it is, for it is the Seventh Day commoration of the beginning of this age with the creation week given to all in the Book Genesis.
The Seventh Day is the only Day givn as the Rest of God, given by God, Himself.
Do not confuse the two.....
They were called to rest and have an holy convocation. A holy gathering.
Lev 23:3 Six days shall work be done: but the seventh day is the sabbath of rest, an holy convocation; ye shall do no work therein: it is the sabbath of the LORD in all your dwellings.
Isaiah wrote in 58:13, "If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day; and call the sabbath a delight, the holy of the LORD, honourable; and shalt honour him, not doing thine own ways, nor finding thine own pleasure, nor speaking thine own words."
So the only thing left for one to do on the Sabbath would be GOD's work and worship. Right?
However one might argue that they were to remain in their own dwelllings. This is not the case . If this was then Jesus himself would have broken the Sabbath commandment. He did not.
And he came to Nazareth, where he had been brought up: and, as his custom was, he went into the synagogue on the Sabbath day, and stood up for to read.
(Luk 4:16 KJV)
But you are right in this respect. GOD only instituted one day to rest. The Sabbath. And that rest is in and with HIM on the seventh day.